Cisco XR 12000 Series Getting Started Manual

Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router

Cisco IOS XR Software Release 4.1

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Text Part Number: OL-24755-01

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Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router

Preface ix

Changes to This Document ix

About This Document ix

Obtaining Documentation and Submitting a Service Request xi

Introduction to Cisco IOS XR Software 1-1

Contents 1-1

Supported Standalone System Configurations 1-1

Cisco XR 12000 Series Router Overview 1-2

Features and Capabilities 1-2

Router Management Interfaces 1-7

Command-Line Interface 1-7 Extensible Markup Language API 1-8 Simple Network Management Protocol 1-8

Selecting and Identifying the Designated Shelf Controller 1-9

Selecting and Identifying the DSC on Cisco XR 12000 and 12000 Series Routers 1-9 Verifying the DSC 1-9

Connecting to the Router Through the Console Port 1-10

Where to Go Next 1-16

Bringing Up the Cisco IOS XR Software on a Standalone Router 2-17

Contents 2-17

Prerequisites 2-17

Software Requirements 2-18 Hardware Prerequisites and Documentation 2-18

Bringing Up and Configuring a Standalone Router 2-19

Verifying the System After Initial Boot 2-20

Where to Go Next 2-25

Configuring General Router Features 3-27

Contents 3-27

Secure Domain Routers 3-27

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Contents

Connecting and Communicating with the Router 3-28

Establishing a Connection Through the Console Port 3-32 Establishing a Connection Through a Terminal Server 3-34 Establishing a Connection Through the Management Ethernet Interface 3-36

Logging In to a Router or an SDR 3-36

CLI Prompt 3-37

User Access Privileges 3-38

User Groups, Task Groups, and Task IDs 3-39 Predefined User Groups 3-40 Displaying the User Groups and Task IDs for Your User Account 3-41

Navigating the Cisco IOS XR Command Modes 3-43

Identifying the Command Mode in the CLI Prompt 3-44 Summary of Common Command Modes 3-45 Entering EXEC Commands from a Configuration Mode 3-47 Command Mode Navigation Example 3-48

Managing Configuration Sessions 3-49

Displaying the Active Configuration Sessions 3-51 Starting a Configuration Session 3-52 Starting an Exclusive Configuration Session 3-53 Displaying Configuration Details with show Commands 3-54 Saving the Target Configuration to a File 3-60 Loading the Target Configuration from a File 3-61 Loading an Alternative Configuration at System Startup 3-61 Clearing All Changes to a Target Configuration 3-61 Committing Changes to the Running Configuration 3-62 Reloading a Failed Configuration 3-64 Exiting a Configuration Submode 3-64 Returning Directly to Configuration Mode from a Submode 3-65 Ending a Configuration Session 3-65 Aborting a Configuration Session 3-65

Configuring the SDR Hostname 3-66

Configuring the Management Ethernet Interface 3-66

Specifying the Management Ethernet Interface Name in CLI Commands 3-67

Displaying the Available Management Ethernet Interfaces 3-67

Configuring the Management Ethernet Interface 3-68

Manually Setting the Router Clock 3-72

Where to Go Next 3-74

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Configuring Additional Router Features 4-75

Contents 4-75

Configuring the Domain Name and Domain Name Server 4-75

Configuring Telnet, HTTP, and XML Host Services 4-77

Prerequisites 4-77

Managing Configuration History and Rollback 4-81

Displaying the Commit IDs 4-82 Displaying the Configuration Changes Recorded in a Commit ID 4-82 Previewing Rollback Configuration Changes 4-83 Rolling Back the Configuration to a Specific Rollback Point 4-83 Rolling Back the Configuration over a Specified Number of Commits 4-84 Loading Commit ID Configuration Changes to the Target Configuration 4-84 Loading Rollback Configuration Changes to the Target Configuration 4-85 Deleting Commit IDs 4-86

Contents

Configuring Logging and Logging Correlation 4-86

Logging Locations and Severity Levels 4-87 Alarm Logging Correlation 4-87 Configuring Basic Message Logging 4-88 Disabling Console Logging 4-90

Creating and Modifying User Accounts and User Groups 4-90

Displaying Details About User Accounts, User Groups, and Task IDs 4-91

CLI Tips, Techniques, and Shortcuts 5-93

Contents 5-93

CLI Tips and Shortcuts 5-93

Entering Abbreviated Commands 5-93 Using the Question Mark (?) to Display On-Screen Command Help 5-94 Completing a Partial Command with the Tab Key 5-96 Identifying Command Syntax Errors 5-96 Using the no Form of a Command 5-97 Editing Command Lines that Wrap 5-97

Displaying System Information with show Commands 5-98

Common show Commands 5-98 Browsing Display Output When the --More-- Prompt Appears 5-99 Halting the Display of Screen Output 5-100 Redirecting Output to a File 5-100

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Narrowing Output from Large Configurations 5-100 Filtering show Command Output 5-102 show parser dump command 5-105 Accessing Admin Commands from Secure Domain Router Mode 5-105 Location Keyword for the File Command 5-105 vty / Console Timestamp 5-106 Displaying Interfaces by Slot Order 5-106 Displaying Unconfigured Interfaces 5-107 Displaying Subnet Mask in CIDR Format 5-108

Wildcards, Templates, and Aliases 5-109

Using Wildcards to Identify Interfaces in show Commands 5-109 Creating Configuration Templates 5-110 Applying Configuration Templates 5-112 Aliases 5-113 Keystrokes Used as Command Aliases 5-114

Command History 5-114

Displaying Previously Entered Commands 5-114 Recalling Previously Entered Commands 5-114 Recalling Deleted Entries 5-115 Redisplaying the Command Line 5-115 Displaying Persistent CLI History 5-115

Key Combinations 5-116

Key Combinations to Move the Cursor 5-116 Keystrokes to Control Capitalization 5-117 Keystrokes to Delete CLI Entries 5-118 Transposing Mistyped Characters 5-118

Troubleshooting the Cisco IOS XR Software 6-119

Contents 6-119

Additional Sources of Information 6-119

Basic Troubleshooting Commands 6-119

Using show Commands to Display System Status and Configuration 6-120 Using the ping Command 6-121 Using the traceroute Command 6-122 Using debug Commands 6-123

Configuration Error Messages 6-127

Configuration Failures During a Commit Operation 6-127

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Configuration Errors at Startup 6-127

Memory Warnings in Configuration Sessions 6-128

Understanding Low-Memory Warnings in Configuration Sessions 6-128 Displaying System Memory Information 6-129 Removing Configurations to Resolve Low-Memory Warnings 6-130 Contacting TAC for Additional Assistance 6-132

Interfaces Not Coming Up 6-132

Verifying the System Interfaces 6-132

Understanding Regular Expressions, Special Characters, and Patterns A-137

Contents A-137

Regular Expressions A-137

Special Characters A-138

Character Pattern Ranges A-138

Multiple-Character Patterns A-139

Contents

LOSSARY

NDEX

Complex Regular Expressions Using Multipliers A-139

Pattern Alternation A-140

Anchor Characters A-140

Underscore Wildcard A-140

Parentheses Used for Pattern Recall A-141

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Preface

This guide describes how to create the initial configuration for a router using the Cisco IOS XR software. This guide also describes how to complete additional administration, maintenance, and troubleshooting tasks that may be required after initial configuration.

This preface contains the following sections:

• Changes to This Document, page ix

• About This Document, page ix

• Obtaining Documentation and Submitting a Service Request, page xi

Changes to This Document

Tabl e 1 lists the technical changes made to this document since it was first printed.

Table 1 Changes to This Document

Revision Date Change Summary

OL-24755-01 April 2011 Initial release of this document.

About This Document

The following sections provide information about Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router and related documents:

• Intended Audience, page x

• Organization of the Document, page x

• Related Documents, page x

• Conventions, page xi

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Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router

Intended Audience

This document is intended for the following people:

• Experienced service provider administrators

• Cisco telecommunications management engineers

• Third-party field service technicians who have completed the Cisco IOS XR software training

sessions

• Customers who daily use and manage routers running Cisco IOS XR software

Organization of the Document

This document contains the following chapters:

• Introduction to Cisco IOS XR Software

• Bringing Up the Cisco IOS XR Software on a Standalone Router

• Configuring General Router Features

• Configuring Additional Router Features

• CLI Tips, Techniques, and Shortcuts

Preface

• Troubleshooting the Cisco IOS XR Software

• Understanding Regular Expressions, Special Characters, and Patterns

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.

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CHAPTER

Introduction to Cisco IOS XR Software

This chapter introduces the routers that support Cisco IOS XR software. It also introduces router concepts, features, and user interfaces.

• Supported Standalone System Configurations, page 1-1

• Cisco XR 12000 Series Router Overview, page 1-2

• Router Management Interfaces, page 1-7

• Selecting and Identifying the Designated Shelf Controller, page 1-9

• Connecting to the Router Through the Console Port, page 1-10

• Where to Go Next, page 1-16

Supported Standalone System Configurations

The Cisco IOS XR software runs on the following standalone systems:

• Cisco XR 12006 Router

• Cisco XR 12008 Router

• Cisco XR 12010 Router

• Cisco XR 12012 Router

• Cisco XR 12016 Router

• Cisco XR 12404 Router

• Cisco XR 12406 Router

• Cisco XR 12410 Router

• Cisco XR 12416 Router

Note Many cards operate in both Cisco XR 12000 Series Routers and in Cisco 12000 Series Internal Routers.

For the latest information on which cards are supported by the Cisco IOS XR software in Cisco XR 12000 Series Routers and Cisco 12000 Series Internal Routers, see Release Notes for

Command Cisco IOS XR Software Release 4.0.

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Cisco XR 12000 Series Router Overview

The Cisco XR 12000 Series Router is powered by Cisco IOS XR software, allowing service providers to isolate public and private services through the virtualization of a single router into separate physical and logical partitions. Cisco IOS XR software is a unique self-healing and self-defending operating system designed for always-on operation while scaling capacity and adding new services or features. With distributed processing intelligence and robust quality-of-service (QoS) and multicast mechanisms, the Cisco XR 12000 Series Router allows providers to scale services and customers with performance.

Features and Capabilities

The router is a scalable carrier-class distributed forwarding router, which is designed for redundancy, high security and availability, packaging, power, and other requirements needed by service providers.

The router aggregates triple play Multi-service edge and Ethernet service traffic aggregating these services to 10 Gigabit Ethernet IP, MPLS edge, or core. It support Ethernet, serial (including MLPPP), frame relay and POS interface on the access side and Ethernet or POS interfaces on the core side.

The following sections describe the features and capabilities in detail:

Chapter 1 Introduction to Cisco IOS XR Software

• Cisco IOS XR Software, page 1-2

• Flexible Ethernet, page 1-4

• L2VPN, page 1-4

• Multicast, page 1-5

• OAM, page 1-5

• Layer 3 Routing, page 1-5

• MPLS VPN, page 1-6

• QoS, page 1-6

• MPLS TE, page 1-7

Cisco IOS XR Software

The router runs Cisco IOS XR Software, which offers the following:

• Rich Networking Feature Set—Cisco IOS XR Software represents a continuation of the Cisco

networking leadership in helping customers realize the power of their networks and the Internet. It provides unprecedented routing-system scalability, high availability, service isolation, and manageability to meet the mission-critical requirements of next-generation networks.

• Operating system infrastructure protection—Cisco IOS XR Software provides a microkernel

architecture that forces all but the most critical functions, such as memory management and thread distribution, outside of the kernel, thereby preventing failures in applications, file systems, and even device drivers from causing widespread service disruption.

• Process and thread protection—Each process, even individual process thread, is executed in its own

protected memory space, and communications between processes are accomplished through well-defined, secure, and version-controlled application programming interfaces (APIs), significantly minimizing the effect that any process failure can have on other processes.

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Chapter 1 Introduction to Cisco IOS XR Software

• Cisco In-Service Software Upgrade (ISSU)—Cisco IOS XR Software modularity sustains system

availability during installation of a software upgrade. ISSUs or hitless software upgrades (HSUs) allow you to upgrade most Cisco router software features without affecting deployed services. You can target particular system components for upgrades based on software packages or composites that group selected features. Cisco preconfigures and tests these packages and composites to help ensure system compatibility.

• Process restart—You can restart critical control-plane processes both manually and automatically in

response to a process failure versus restarting the entire operating system. This feature supports the Cisco IOS XR Software goal of continuous system availability and allows for quick recovery from process or protocol failures with minimal disruption to customers or traffic.

• State checkpoint—You can maintain a memory and critical operating state across process restarts to

sustain routing adjacencies and signaling state during a Route Switch Processor (RSP) switchover.

• Ethernet virtual connections (EVCs)—Ethernet services are supported using individual EVCs to

carry traffic belonging to a specific service type or end user through the network. You can use EVC-based services in conjunction with MPLS-based L2VPNs and native IEEE bridging deployments.

• Flexible VLAN classification—VLAN classification into Ethernet flow points (EFPs) includes

single-tagged VLANs, double-tagged VLANs (QinQ and IEEE 802.1ad), contiguous VLAN ranges, and noncontiguous VLAN lists.

Cisco XR 12000 Series Router Overview

• IEEE Bridging—Software supports native bridging based on IEEE 802.1Q, IEEE 802.1ad, IEEE

802.1ah provider backbone bridges (PBB) and QinQ VLAN encapsulation mechanisms on the router.

• IEEE 802.1s Multiple Spanning Tree (MST)—MST extends the IEEE 802.1w Rapid Spanning Tree

Protocol (MSTP) to multiple spanning trees, providing rapid convergence and load balancing.

• MST Access Gateway—This feature provides a resilient, fast-convergence mechanism for

aggregating and connecting to Ethernet-based access rings.

• Virtual Private LAN Services (VPLS)—VPLS is a class of VPN that supports the connection of

multiple sites in a single, bridged domain over a managed IP/MPLS network. It presents an Ethernet interface to customers, simplifying the LAN and WAN boundary for service providers and customers, and enabling rapid and flexible service provisioning because the service bandwidth is not tied to the physical interface. All services in a VPLS appear to be on the same LAN, regardless of location.

• Hierarchical VPLS (H-VPLS)—H-VPLS provides a level of hierarchy at the edge of the VPLS

network for increased scale. QinQ access and H-VPLS pseudowire access options are supported.

• Virtual Private WAN Services/Ethernet over MPLS (VPWS/EoMPLS)—EoMPLS transports

Ethernet frames across an MPLS core using pseudowires. Individual EFPs or an entire port can be transported over the MPLS backbone using pseudowires to an egress interface or subinterface.

• Pseudowire redundancy—Pseudowire redundancy supports the definition of a backup pseudowire to

protect a primary pseudowire that fails.

• Multisegment pseudowire stitching—Multisegment pseudowire stitching is a method for

interworking two pseudowires together to form a cross-connect relationship.

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• IPv4 Multicast—IPv4 Multicast supports Internet Group Management Protocol Versions 2 and 3

(IGMPv2/v3), Protocol Independent Multicast Source Specific Multicast (SSM) and Sparse Mode (SM), Multicast Source Discovery Protocol (MSDP), and Anycast Rendezvous Point (RP).

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Cisco XR 12000 Series Router Overview

• IGMP v2/v3 Snooping—This Layer 2 mechanism efficiently tracks multicast membership on an

• N-Tuple Hashing—A new 7-tuple hash algorithm, which provides better load balancing across equal

• Link Bundling Phase 3—The link bundle interface is enabled to be used as an edge-facing interface

Flexible Ethernet

The router uses Ethernet as its transport mechanism, which offers the following:

• Ethernet virtual connections (EVCs)—Ethernet services are supported using individual EVCs to

Chapter 1 Introduction to Cisco IOS XR Software

L2VPN network. Individual IGMP joins are snooped at the VLAN level or pseudowire level, and then it summarizes the results into a single upstream join message. In residential broadband deployments, this feature enables the network to send only channels that are being watched to the downstream users.

cost paths, is introduced. This algorithm uses additional Layer 4 information from the Layer 3 packet. For more information on 7-tuple hashing, see the Cisco IOS XR IP Addresses and Services Configuration Guide for the Cisco XR 12000 Series Router.

by providing a number of new features, such as ACL, Mac Accounting, IPv6, PIMv6, uRPF, MVPN, L2VPN, BFD, and Unequal BW. For more information on link bundling phase 3, see the Cisco IOS XR Interface and Hardware Component Configuration Guide for the Cisco XR 12000 Series Router.

carry traffic belonging to a specific service type or end user through the network. You can use EVC-based services in conjunction with MPLS-based L2VPNs and native IEEE bridging deployments.

L2VPN

• Flexible VLAN classification—VLAN classification into EFPs includes single-tagged VLANs,

double-tagged VLANs (QinQ and IEEE 802.1ad), contiguous VLAN ranges, and noncontiguous VLAN lists.

• IEEE Bridging— The software supports native bridging based on IEEE 802.1Q, IEEE 802.1ad, and

QinQ VLAN encapsulation mechanisms on the router.

• IEEE 802.1s Multiple Spanning Tree (MST)—MST extends the MSTP to multiple spanning trees,

providing rapid convergence and load balancing.

• MST Access Gateway—This feature provides a resilient, fast-convergence mechanism for

aggregating and connecting to Ethernet-based access rings.

The router uses L2VPNs, which offers the following:

• Virtual Private LAN Services (VPLS)—VPLS is a class of VPN that supports the connection of

• Hierarchical VPLS (H-VPLS)—H-VPLS provides a level of hierarchy at the edge of the VPLS

network for increased scale. QinQ access and H-VPLS pseudowire access options are supported.

• Virtual Private WAN Services/Ethernet over MPLS (VPWS/EoMPLS)—EoMPLS transports

Ethernet frames across an MPLS core using pseudowires. Individual EFPs or an entire port can be transported over the MPLS backbone using pseudowires to an egress interface or subinterface.

1-4

• Pseudowire redundancy—Pseudowire redundancy supports the definition of a backup pseudowire to

protect a primary pseudowire that fails.

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Chapter 1 Introduction to Cisco IOS XR Software

• Multisegment pseudowire stitching—This feature is a method used to interwork two pseudowires

together to form a cross-connect relationship.

Multicast

The router supports multicast, which offers the following:

• IPv4 Multicast—IPv4 Multicast supports Internet Group Management Protocol Versions 2 and 3

(IGMPv2/v3), Protocol Independent Multicast Source Specific Multicast (SSM) and Sparse Mode (SM), Multicast Source Discovery Protocol (MSDP), and Anycast Rendezvous Point (RP).

• IGMP v2/v3 Snooping—This Layer 2 mechanism efficiently tracks multicast membership on an

OAM

The router supports different types of operations, administration, and maintenance (OAM), which offers the following:

Cisco XR 12000 Series Router Overview

Layer 3 Routing

• E-OAM (IEEE 802.3ah)—Ethernet link layer OAM is a vital component of EOAM that provides

physical-link OAM to monitor link health and assist in fault isolation. Along with IEEE 802.1ag, Ethernet link layer OAM can be used to assist in rapid link-failure detection and signaling to remote end nodes of a local failure.

• E-OAM (IEEE 802.1ag and ITU-T Y.1731)—Ethernet Connectivity Fault Management (CFM) is a

service-level OAM protocol that provides a number of mechanisms for fault management and performance monitoring. This includes procedures for monitoring and verifying the path between multiple end points, via IEEE 802.1 bridges and LANs.

• MPLS OAM—This protocol supports Label Switched Path (LSP) ping, LSP TraceRoute, and Virtual

Circuit Connectivity Verification (VCCV). .

• Ethernet SLA (Service Level Agreement)—The router supports a feature-rich manageability

interface for performance monitoring, using the capabilities provided by the Ethernet CFM.

• Ethernet Fault Detection—The router supports a mechanism to use faults detected by Ethernet OAM

protocols as a trigger to bring down interfaces or sub-interfaces. Hence, there is a trigger protection switching or L3 re-routing during a failure.

The router runs Cisco IOS XR Software, which supports Layer 3 routing and a range of IPv4 services and routing protocols, including the following:

• Intermediate System-to-Intermediate System (IS-IS)—Integrated Intermediate IS-IS, Internet

Protocol Version 4 (IPv4), is a standards-based Interior Gateway Protocol (IGP). For more information on IS-IS, see Cisco IOS XR Routing Configuration Guide for the Cisco XR 12000 Series Router.

• Open Shortest Path First (OSPF)—OSPF is an IGP developed by the OSPF working group of the

Internet Engineering Task Force (IETF). For more information on OSPF, see Cisco IOS XR Routing Configuration Guide for the Cisco XR 12000 Series Router.

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Cisco XR 12000 Series Router Overview

• Static Routing—Static routes are user-defined routes that cause packets moving between a source

and a destination to take a specified path. For more information on static routing, see Cisco IOS XR Routing Configuration Guide for the Cisco XR 12000 Series Router.

• IPv4 Multicast—IPv4 Multicast delivers source traffic to multiple receivers without adding any

additional burden on the source or the receivers while using the least network bandwidth of any competing technology. For more information on IPv4 Multicast, see Cisco IOS XR Multicast Configuration Guide for the Cisco XR 12000 Series Router.

• Routing Policy Language (RPL)—RPL provides a single, straightforward language in which all

routing policy needs can be expressed. For more information on RPL, see Cisco IOS XR Routing Configuration Guide for the Cisco XR 12000 Series Router.

• Hot Standby Router Protocol (HSRP)—HSRP is an IP routing redundancy protocol designed to

allow for transparent failover at the first-hop IP router. For more information on HSRP, see Cisco IOS XR IP Addresses and Services Configuration Guide for the Cisco XR 12000 Series Router.

• Virtual Router Redundancy Protocol (VRRP)—VRRP allows for transparent failover at the first-hop

IP router, enabling a group of routers to form a single virtual router. For more information on VRRP, see Cisco IOS XR IP Addresses and Services Configuration Guide for the Cisco XR 12000 Series Router.

• Border Gateway Protocol (BGP) Add Path— This feature enables a BGP speaker to send multiple

paths for a prefix. For more information on BGP Add Path, see Cisco IOS XR Routing Configuration Guide for the Cisco XR 12000 Series Router.

• Selective VRF Download (SVD)—This feature allows the download of only those prefixes and

labels to a line card that are actively required to forward traffic through that line card. For more information on SVD, see the Cisco IOS XR Routing Configuration Guide for the Cisco XR 12000 Series Router.

Chapter 1 Introduction to Cisco IOS XR Software

MPLS VPN

QoS

The router supports MPLS VPN, which offers the following:

• MPLS L3VPN—This IP VPN feature for MPLS allows a Cisco IOS Software or

Cisco IOS XR software network to deploy scalable IPv4 Layer 3 VPN backbone services. An IP VPN is the foundation that companies use for deploying or administering value-added services, including applications and data hosting network commerce and telephony services, to business customers.

• Carrier Supporting Carrier (CSC)—CSC allows an MPLS VPN service provider to connect

geographically isolated sites using another backbone service provider and still maintain a private address space for its customer VPNs. It is implemented as defined by IETF RFC 4364.

• Inter-AS—is a peer-to-peer type model that allows extension of VPNs through multiple provider or

multi-domain networks. This lets service providers peer up with one another to offer end-to-end VPN connectivity over extended geographical locations. An MPLS VPN Inter-AS allows:

–

VPN to cross more than one service provider backbone.

–

VPN to exist in different areas.

–

Confederations to optimize Internal Border Gateway Protocol (iBGP) meshing.

The router supports many types of quality of service (QoS), which offers the following:

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Chapter 1 Introduction to Cisco IOS XR Software

• QoS—Comprehensive QoS support with up to 3 million queues, Class-Based Weighted Fair

Queuing (CBWFQ) based on a three-parameter scheduler, Weighted Random Early Detection (WRED), two-level strict priority scheduling with priority propagation, and 2-rate, 3-color (2R3C) Policing are all supported.

• Cisco IOS XR Software—This software supports a rich variety of QoS mechanisms, including

policing, marking, queuing, dropping, and shaping. In addition, the operating systems support Modular QoS CLI (MQC). Modular CLI is used to configure various QoS features on various Cisco platforms.

• H-QoS—Is supported on Ethernet interfaces. For EVCs four-level H-QoS support is provided with

the following hierarchy levels: port, group of EFPs, EFP, and class of service. This level of support allows for per-service and per-end user QoS granularity. Four-level H-QoS support is provided for EVCs with the following hierarchy levels: port, group of EFPs, EFP, and class of service. This level of support allows for per-service and per-end user QoS granularity. H-QOS support is also provided on SIP based interfaces.

MPLS TE

The router supports MPLE Traffic Engineering (TE), which offers the following:

• MPLS TE—Cisco IOS XR Software supports MPLS protocols such as Traffic Engineering/Fast

Reroute (TE-FRR), Resource Reservation Protocol (RSVP), Label Distribution Protocol (LDP), and Targeted Label Distribution Protocol (T-LDP).

Router Management Interfaces

• MPLS TE Preferred Path—Preferred tunnel path functions let you map pseudowires to specific TE

tunnels. Attachment circuits are cross-connected to specific MPLS TE tunnel interfaces instead of remote provider-edge router IP addresses (reachable using IGP or LDP).

• Ignore Intermediate System-to-Intermediate System (IS-IS) Overload Bit Avoidance—This feature

allows network administrators to prevent a RSVP-TE Label Switched Path (LSP) from being disabled when a router in that path has its Intermediate System-to-Intermediate System (IS-IS) overload bit set. For more information on IS-IS overload bit aviodance, see the Cisco IOS XR MPLS Configuration Guide for the Cisco XR 12000 Series Router.

Router Management Interfaces

Because new routers are not yet configured for your environment, you must begin the configuration using the command-line interface (CLI). This guide provides instructions on using the CLI to configure basic router features. Cisco IOS XR software supports the following router management interfaces, which are described in the following sections:

• Command-Line Interface, page 1-7

• Extensible Markup Language API, page 1-8

• Simple Network Management Protocol, page 1-8

Command-Line Interface

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The CLI is the primary user interface for configuring, monitoring, and maintaining routers that run Cisco IOS XR software. The CLI allows you to directly and simply execute Cisco IOS XR commands.

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Router Management Interfaces

All procedures in this guide use CLI. Before you can use other router management interfaces, you must first use the CLI to install and configure those interfaces. Guidelines for using the CLI to configure the router are discussed in the following chapters:

• Configuring General Router Features

• Configuring Additional Router Features

• CLI Tips, Techniques, and Shortcuts

For more information on CLI procedures for other tasks, such as hardware interface and software protocol management tasks, see the Cisco IOS XR software documents listed in the “Related

Documents” section on page x.

Extensible Markup Language API

The Extensible Markup Language (XML) application programming interface (API) is an XML interface used for rapid development of client applications and perl scripts to manage and monitor the router. Client applications can be used to configure the router or request status information from the router by encoding a request in XML API tags and sending it to the router. The router processes the request and sends the response to the client in the form of encoded XML API tags. The XML API supports readily available transport layers, including Telnet, SSH, and Common Object Request Broker Architecture (CORBA). The Secure Socket Layer (SSL) transport is also supported by the XML API.

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For more information, see the Cisco IOS XR software documents listed in the “Related Documents”

section on page x.

Simple Network Management Protocol

Simple Network Management Protocol (SNMP) is an application-layer protocol that facilitates the exchange of management information between network devices. By using SNMP-transported data (such as packets per second and network error rates), network administrators can manage network performance, find and solve network problems, and plan for network growth.

The Cisco IOS XR software supports SNMP v1, v2c, and v3. SNMP is part of a larger architecture called the Internet Network Management Framework (NMF), which is defined in Internet documents called RFCs. The SNMPv1 NMF is defined by RFCs 1155, 1157, and 1212, and the SNMPv2 NMF is defined by RFCs 1441 through 1452..

SNMP is a popular protocol for managing diverse commercial internetworks and those used in universities and research organizations. SNMP-related standardization activity continues even as vendors develop and release state-of-the-art, SNMP-based management applications. SNMP is a relatively simple protocol, yet its feature set is sufficiently powerful to handle the difficult problems presented in trying to manage the heterogeneous networks of today.

For more information, see the Cisco IOS XR software documents listed in the “Related Documents”

section on page x.

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Selecting and Identifying the Designated Shelf Controller

The designated shelf controller (DSC) controls a standalone router or a multishelf system. A DSC is a role that is assigned to one performance route processor (PRP) card in each router . A DSC is a role that is assigned to one performance route processor (PRP) card in each router or multishelf system. PRP cards operate in Cisco XR 12000 and 12000 Series Routers.

Note Throughout this guide, the term PRP is used to refer to the PRP cards supported on

Cisco XR 12000 Series Routers. Cisco XR 12000 Series Routers, support both the PRP-2 and the PRP-3 cards. If a feature or an issue applies to only one platform, the accompanying text specifies the platform.

Although each router can have two RP cards, only one can serve as the DSC and control the router. The DSC provides system-wide administrative functions, including:

• User configuration using a terminal connection or network connection

• Distribution of software to each node in the router or system

• Coordination of software versioning and configurations for all nodes in the router or system

• Hardware inventory and environmental monitoring

The first step in setting up a new router is to select or identify the DSC because the initial router configuration takes place through the DSC. The following sections describe how to select and identify the DSC on different routers:

• Selecting and Identifying the DSC on Cisco XR 12000 and 12000 Series Routers, page 1-9

• Verifying the DSC, page 1-9

Selecting and Identifying the DSC on Cisco XR 12000 and 12000 Series Routers

A Cisco XR 12000 Series Router or Cisco 12000 Series Internal Router supports multiple PRPs. When the router is started for the first time, the PRP in the slot with the lowest number becomes the active PRP and is identified by the alphanumeric display: ACTV RP. The active PRP serves as the DSC. If another PRP is configured as a standby PRP for the DSC, that PRP can assume the DSC role if the DSC fails.

To have a PRP in a higher-numbered slot become the DSC, you must bring up the router with only that PRP installed. After the chosen PRP becomes the DSC, it remains the DSC after subsequent restarts and you can add the other PRPs.

Note Additional PRPs can be installed to host secure domain routers (SDRs), which are introduced in

Chapter 3, “Configuring General Router Features.” To configure general router features, you must

connect to the DSC. To configure SDR features, you must connect to the PRP for the appropriate SDR.

Verifying the DSC

Use the show dsc command to verify which RP is acting as the primary DSC for the router or routing system.

The following example shows sample output of the show dsc command on a Cisco XR 12000 Series Router:

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Connecting to the Router Through the Console Port

RP/0/0/CPU0:router#admin Mon May 31 01:38:09.733 DST RP/0/0/CPU0:router(admin)#show dsc all Mon May 31 01:38:31.134 DST

NODE ROLE PRIORITY TBEACON PRESENT SERIAL ID ============================================================================ 0/0/CPU0 DSC 3 2000 YES invalid

----------------------------------------------------------------------------

Connecting to the Router Through the Console Port

The first time you connect to a new router with Cisco IOS XR software, you must connect through the Console port on the DSC. Although typical router configuration and management take place using an Ethernet port on the DSC, you must configure the console port for your LAN before it can be used.

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Chapter 1 Introduction to Cisco IOS XR Software

Figure 1-1 shows the PRP-2 connections on the Cisco XR 12000 Series Router. Figure 1-2 shows the PRP-3 connections on the Cisco XR 12000 Series Router.

Note Cisco IOS XR software does not support PRP-1.

Connecting to the Router Through the Console Port

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Chapter 1 Introduction to Cisco IOS XR Software

ACT

SIG

ACT

SIG

SLOT-1

SLOT-0

CONSOLE ETH 2AUX

RESET

PERFORMANCE ROUTE PROCESSOR 2

BITS 1BITS 0

DATA

LINK

DATA

LINK

ETH 1ETH 0

149695

Terminal connection

Modem connection

User-removable flash disk1 stores installation PIE files

A second internal flash disk0 stores installed software and active configurations

LED status displays (alphanumeric)

Remote CLI, CWI, XML,

or SNMP communication.

Remote file storage

Ethernet cable

Network

Local terminal or

terminal server for

CLI communication

RJ-45 cable

Remote terminal for

CLI communication

RJ-45 cable

Management Ethernet connection for out-of-band network communication

Connecting to the Router Through the Console Port

Figure 1-1 Communication Ports on the PRP-2 for a Cisco XR 12000 Series Router

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272359

CONSOLE

AUXBITS 1BITS 0ETH 1ETH 0

PERFORMANCE RP 3

RESET

INK

1 3 4 52

Figure 1-2 Communication Ports on the PRP-3

1 Ejector Lever

2 Handle

3 External Compact Flash

4 Reset button

5 Alphanumeric LEDs

Connecting to the Router Through the Console Port

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Connecting to the Router Through the Console Port

To connect to the router through the Console port, perform the following procedure.

SUMMARY STEPS

1. Power on the standalone router, or power on Rack 0 in a multishelf system.

2. Identify the DSC.

3. Connect a terminal to the Console port of the DSC.

4. Start the terminal emulation program.

5. Press Enter.

6. Log in to the router.

7. admin

8. show dsc all

DETAILED STEPS

Command or Action Purpose

Step 1

Power on the standalone router, or power on Rack 0 in a multishelf system.

Step 2

Step 3

Identify the DSC. Identifies the RP to which you must connect in the next step.

Connect a terminal to the Console port of the DSC. Establishes a communications path to the router.

Chapter 1 Introduction to Cisco IOS XR Software

Starts the router or Rack 0.

• This step is required only if the power is not on.

• For information on power installation and controls, see

the hardware documentation listed in the “Related

Documents” section on page x.

• For more information, see the “Selecting and

Identifying the Designated Shelf Controller” section on page 1-9.

1-14

• During the initial setup, you can communicate with the

• Router Console port is designed for a serial cable

• Terminal settings are:

• For information on the cable requirements for the

Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router

router only through the Console port of the DSC.

connection to a terminal or a computer that is running a terminal emulation program.

–

Bits per second: 9600/9600

–

Data bits: 8

–

Parity: None

–

Stop bit: 2

–

Flow control: None

Console port, see the hardware documentation listed in the “Related Documents” section on page x.

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Command or Action Purpose

Step 4

Step 5

Start the terminal emulation program. (Optional) Prepares a computer for router communications.

Press Enter. Initiates communication with the router.

Connecting to the Router Through the Console Port

• Not required if you are connecting through a terminal.

• Terminals send keystrokes to, and receive characters,

from another device. If you connect a computer to the Console port, you must use a terminal emulation program to communicate with the router. For instructions on using the terminal emulation program, see the documentation for that program.

• If no text or router prompt appears when you connect to

the console port, press Enter to initiate communications.

• If no text appears when you press Enter, give the router

more time to complete the initial boot procedure, then press Enter.

• If the prompt gets lost among display messages, press

Enter again.

Step 6

Step 7

Step 8

• If the router has no configuration, the router displays

the prompt:

• If the router has been configured, the router displays the

prompt:

Enter root-system username:

Username:

session.

• Enter the root-system username and password or the

username and password provided by your system administrator.

• After you log in, the router displays the CLI prompt,

which is described in the “CLI Prompt” section on

page 3-37.

• If the router prompts you to enter a root-system

username, the router is not configured, and you should follow one of the bring up procedures mentioned in the next section.

admin

Places the router in administration EXEC mode.

Example:

RP/0/0/CPU0:router# admin

show dsc all

Displays the DSC information for the router or router system so that you can verify that you have connected to the

Example:

RP/0/0/CPU0:router(admin)# show dsc all

DSC console port.

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Where to Go Next

If you have logged into the router or multishelf system, you can perform the general router configuration as described in Configuring General Router Features.

If the router is prompting you to enter a root-system username, bring up the router. For more information, see Bringing Up the Cisco IOS XR Software on a Standalone Router.

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Note If you are upgrading a Cisco XR 12000 Series Router from Cisco IOS software to

CHAPTER

Bringing Up the Cisco IOS XR Software on a Standalone Router

This chapter provides instructions for bringing up the Cisco IOS XR software on a standalone router for the first time. This section applies to standalone routers that are delivered with Cisco IOS XR software installed.

Cisco IOS XR software, see the Cisco IOS XR software document Upgrading from Cisco IOS to Cisco IOS XR Software on the Cisco 12000 Series Router.

• Prerequisites, page 2-17

• Bringing Up and Configuring a Standalone Router, page 2-19

• Verifying the System After Initial Boot, page 2-20

• Where to Go Next, page 2-25

Prerequisites

The following sections describe the software and hardware requirements for bringing up a standalone system running Cisco IOS XR Software Release 4.1.

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Chapter 2 Bringing Up the Cisco IOS XR Software on a Standalone Router

Prerequisites

Software Requirements

The system requires compatible ROM Monitor firmware on all RPs.

Caution The ROM Monitor firmware on all RPs must be compatible with the Cisco IOS XR software release

currently running on the router before a Cisco XR 12000 Series Router system is upgraded to Cisco IOS XR Software Release 4.1. For minimum ROM Monitor requirements for Cisco IOS XR Software Release

3.2.0 and later releases, see the Software/Firmware Compatibility Matrix at the following URL:

http://www.cisco.com/web/Cisco_IOS_XR_Software/index.html

If the router is brought up with an incompatible version of the ROM Monitor software, the standby RP may fail to boot. For instructions to overcome a boot block in the standby RP in a single-chassis system, see Cisco IOS XR ROM Monitor Guide for the Cisco XR 12000 Series Router. If a boot block occurs in a multishelf system, contact your Cisco Technical Support representative for assistance. See the “Related

Documents” section on page x.

Hardware Prerequisites and Documentation

The Cisco IOS XR software runs on the routers listed in the “Supported Standalone System

Configurations” section on page 1-1. Before a router can be started, the following hardware management

procedures must be completed:

• Site preparation

• Equipment unpacking

• Router installation

For information on how to complete these procedures for your router equipment, see the hardware documents listed in the “Related Documents” section on page x.

Note If you are upgrading a Cisco 12000 Series Router from Cisco IOS software to Cisco IOS XR software,

you must first prepare the router. For more information, see Upgrading from Cisco IOS to Cisco IOS XR Software on the Cisco 12000 Series Router. For a complete listing of available documents, see the

“Related Documents” section on page x.

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+ 146 hidden pages

Cisco XR 12000 Series Getting Started Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

Preface

Changes to This Document

About This Document

Obtaining Documentation and Submitting a Service Request

Contents

Introduction to Cisco IOS XR Software

Supported Standalone System Configurations

Cisco XR 12000 Series Router Overview

Features and Capabilities

Router Management Interfaces

Command-Line Interface

Extensible Markup Language API

Simple Network Management Protocol

Selecting and Identifying the Designated Shelf Controller

Selecting and Identifying the DSC on Cisco XR 12000 and 12000 Series Routers

Verifying the DSC

Connecting to the Router Through the Console Port

Where to Go Next

Contents

Bringing Up the Cisco IOS XR Software on a Standalone Router

Prerequisites

Software Requirements

Hardware Prerequisites and Documentation